This ORCiD blog post explains detailed account settings and how to get the most out of your account.
For a video walkthrough on how to register for an ORCiD, please consult this video (2:21 minutes) on the process. You can find more videos with various helpful hints here.
Then add your information. Be sure to include any variations of your name that you have published under. If you have an existing ResearcherID in Web of Science, you will be able to link the two IDs and import references for your publications using special wizards (see instructions below).
Adding Information to Your ORCiD Profile
Import references from ResearcherID profile -- If you have a ResearcherID, you can import information to your ORCiD profile.
Follow the on screen prompts to send your ResearcherID and papers to ORCiD
Import references using CrossRef Metadata Search -- import references for books, articles, and any other of your publication registered in the CrossRef system into your ORCiD profile